Power Integrations INN3949FQ502-MR
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $94,999.99 | $94,999.99 |
| 15+ | $91,999.99 | $1,379,999.85 |
| 25+ | $89,999.99 | $2,249,999.75 |
| 50+ | $84,999.99 | $4,249,999.50 |
| 100+ | $74,999.99 | $7,499,999.00 |
| N+ | $15,000.00 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Power Integrations |
| Product Series | FQ |
| Packaging | Tape & Reel (TR) | |
| Output Isolation | Isolated |
| Internal Switch(s) | Yes |
| Voltage - Breakdown | 1700V |
| Topology | Flyback, Secondary Side SR |
| Voltage - Start Up | 30 V |
| Voltage - Supply (Vcc/Vdd) | 30V ~ 1200V |
| Duty Cycle | - |
| Frequency - Switching | 25kHz ~ 95kHz |
| Power (Watts) | 70 W |
| Fault Protection | Current Limiting, Over Temperature, Over Voltage |
| Control Features | Soft Start |
| Operating Temperature | -40°C ~ 125°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | 28-PowerSMD Module (0.425", 10.80mm Width), 19 Leads |
| Supplier Device Package | InSOP-T28G |
| ROHS |  |
The Power Integrations INN3949FQ502-MR is an isolated flyback AC-DC converter with secondary-side synchronous rectification and an integrated 1700V switch. It delivers up to 70 W across a 25kHz to 95kHz switching range, with a 30V to 1200V Vcc supply and 30 V start-up threshold. Current limiting, over temperature, and over voltage protection plus soft start support robust operation from -40°C to 125°C in a 28-PowerSMD module.
- 1700V integrated switch breakdown rating enables high-voltage bus operation.
- Secondary-side synchronous rectification improves isolated flyback efficiency.
- Wide 30V to 1200V Vcc supply range supports flexible biasing.
- Soft start plus over voltage, over temperature, and current limiting protection enhance reliability.
- -40°C to 125°C operating range suits demanding environments.
Industrial Auxiliary Power Supplies
The 1700V breakdown voltage and flyback topology make this device well suited for generating isolated bias rails from high-voltage DC buses in industrial systems.
High-Voltage Metering and Monitoring
With a 30V to 1200V Vcc supply range and integrated switch, it supports isolated power in high-voltage sensing and monitoring equipment.
Motor Drive and Inverter Bias
Secondary-side synchronous rectification and soft start support reliable isolated auxiliary supply generation in motor drive and inverter control stages.
Renewable Energy Control Boards
The wide -40°C to 125°C operating range and over voltage/over temperature protection suit demanding energy conversion control electronics.
- Q: What is the maximum power rating of the INN3949FQ502-MR?
- A: It delivers up to 70 W of output power.
- Q: What is the breakdown voltage of the integrated switch?
- A: The device features a 1700V breakdown voltage rating.
- Q: What topology does this converter use?
- A: It uses a flyback topology with secondary-side synchronous rectification.
- Q: What is the switching frequency range?
- A: The switching frequency spans 25kHz to 95kHz.
- Q: What protections are included?
- A: Current limiting, over temperature, and over voltage protection.
INN3949FQ502-MR.pdf
- Q: What is the maximum power rating of the INN3949FQ502-MR?
- A: It delivers up to 70 W of output power.
- Q: What is the breakdown voltage of the integrated switch?
- A: The device features a 1700V breakdown voltage rating.
- Q: What topology does this converter use?
- A: It uses a flyback topology with secondary-side synchronous rectification.
- Q: What is the switching frequency range?
- A: The switching frequency spans 25kHz to 95kHz.
- Q: What protections are included?
- A: Current limiting, over temperature, and over voltage protection.
